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Diffstat (limited to 'src/backends/cl/ClBackendDefaultAllocator.hpp')
| -rw-r--r-- | src/backends/cl/ClBackendDefaultAllocator.hpp | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/backends/cl/ClBackendDefaultAllocator.hpp b/src/backends/cl/ClBackendDefaultAllocator.hpp new file mode 100644 index 0000000000..300f560000 --- /dev/null +++ b/src/backends/cl/ClBackendDefaultAllocator.hpp @@ -0,0 +1,47 @@ +// +// Copyright © 2021 Arm Ltd and Contributors. All rights reserved. +// SPDX-License-Identifier: MIT +// +#pragma once +#include <cstddef> +#include <memory> +#include <armnn/MemorySources.hpp> +#include <armnn/utility/IgnoreUnused.hpp> + +namespace armnn +{ +/** Default Memory Allocator class returned from IBackendInternal::GetDefaultAllocator(MemorySource) */ +class ClBackendDefaultAllocator : public armnn::ICustomAllocator +{ +public: + ClBackendDefaultAllocator() = default; + + void* allocate(size_t size, size_t alignment = 0) override + { + IgnoreUnused(alignment); + cl_mem buf{ clCreateBuffer(arm_compute::CLScheduler::get().context().get(), + CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE, + size, + nullptr, + nullptr)}; + return static_cast<void *>(buf); + } + + void free(void* ptr) override + { + ARM_COMPUTE_ERROR_ON(ptr == nullptr); + clReleaseMemObject(static_cast<cl_mem>(ptr)); + } + + armnn::MemorySource GetMemorySourceType() override + { + return armnn::MemorySource::Gralloc; + } + + void* GetMemoryRegionAtOffset(void* buffer, size_t offset, size_t alignment = 0) override + { + IgnoreUnused(alignment); + return static_cast<char*>(buffer) + offset; + } +}; +} // namespace armnn
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